Hi there!
finally was able to complete the quest, thanks to a bug from GI...
I have a neighbor that systematically crashes my game when I try to visit him. So I could visit one neighbor with 5 universities, tap on them and then if I was happy with the gifts, tap immediately on the home button, which would "save" the gifts, or if I wasn't happy, go immediately to visit the crashing neighbor. After restart, it was as if I hadn't visited my neighbor, so I could try again, until I pick at least one useful item...